<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="css/index.css">
    <style>
    [class^='col']{
        height: 50px;
        border: 1px solid olivedrab;
        float: left;
    }
    .container{
        width: 1150px;
        margin: 0 auto;
        overflow: hidden;
    }
    </style>
</head>
<body>
    <div class="container">
        <div class="col-pc-3 col-pad-4"></div>
        <div class="col-pc-3 col-pad-4"></div>
        <div class="col-pc-3 col-pad-4"></div>
        <div class="col-pc-3 col-pad-4"></div>
    </div>
</body>
</html>